自然资源学报 ›› 2019, Vol. 34 ›› Issue (11): 2440-2453.doi: 10.31497/zrzyxb.20191115
陈洁1,2, 刘玉洁1,2, 潘韬1, 吴绍洪1,2, 谭清华1,2, 葛全胜1,2, 刘燕华1,2
收稿日期:
2019-05-13
修回日期:
2019-08-31
出版日期:
2019-11-28
发布日期:
2019-11-28
通讯作者:
刘玉洁(1982- ),女,甘肃省天水市人,博士,副研究员,主要从事气候变化影响与适应研究。E-mail: liuyujie@igsnrr.ac.cn
作者简介:
陈洁(1994- ),女,福建宁德人,博士研究生,主要从事气候变化影响与风险评估研究。E-mail: chenj.16s@igsnrr.ac.cn
基金资助:
CHEN Jie1,2, LIU Yu-jie1,2, PAN Tao1, WU Shao-hong1,2, TAN Qing-hua1,2, GE Quan-sheng1,2, LIU Yan-hua1,2
Received:
2019-05-13
Revised:
2019-08-31
Online:
2019-11-28
Published:
2019-11-28
摘要: 开展气候变化背景下中国降水时空变化特征及对地表干湿状况影响研究,对揭示陆地表层系统对气候变化的动态响应与变化规律以及防灾减灾具有重要意义。基于1961-2010年地面气象观测资料,分析我国降水与地表干湿状况时空格局;在此基础上,采用敏感性与贡献度分析,定量评估降水变化对干湿状况的影响。结果表明:过去50年间我国年降水量呈轻微增加趋势,其中,青藏高原(高原亚寒带、高原温带)、西北(中温带西部、暖温带西部)和南方地区(亚热带、热带)呈增加趋势,东北(寒温带、中温带东部)和华北地区(中温带中东部、暖温带东部)呈减少趋势。就地表干湿状况而言,华北和东北地区以干旱化趋势为主,西北、青藏高原及南方地区主要呈湿润化趋势。地表干湿状况对降水变化响应较为敏感(全国多年平均敏感系数:-1.13),干湿指数和降水呈负相关。内陆干旱地区降水对干湿状况变化的贡献高于湿润地区,局部地区降水贡献度超过60%。
陈洁, 刘玉洁, 潘韬, 吴绍洪, 谭清华, 葛全胜, 刘燕华. 1961-2010年中国降水时空变化特征及对地表干湿状况影响[J]. 自然资源学报, 2019, 34(11): 2440-2453.
CHEN Jie, LIU Yu-jie, PAN Tao, WU Shao-hong, TAN Qing-hua, GE Quan-sheng, LIU Yan-hua. Spatiotemporal variation of precipitation in China and its impact on surface dry-wet conditions during 1961-2010[J]. JOURNAL OF NATURAL RESOURCES, 2019, 34(11): 2440-2453.
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